Vertical ladder for underground coal mine
A technology for straight ladders and coal mines, applied in ladders, mining devices, mining equipment, etc., can solve problems such as unstable leaning, and achieve the effects of improving stability, increasing contact surface, and improving construction safety.
Pending Publication Date: 2021-09-21
陕西陕煤韩城矿业有限公司
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Problems solved by technology
[0005] The purpose of the present invention is to provide a straight ladder for coal mines to solve the problem of unstable leaning when the ladder leans on the single hydraulic prop, and to improve the construction safety in the underground roadway
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[0023] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0024] The embodiment of the present invention discloses a kind of vertical ladder for underground coal mine, such as figure 1 As shown, it includes a straight ladder 10 for leaning on a single hydraulic prop 30. The straight ladder 10 includes side bars 11 on both sides, and several cross bars 12 are arranged in parallel between the side bars 11 on both sides; The leaning side of the crossbar 12 is provided with an arc-shaped reinforcing plate 20, the arc-shaped reinforcing plate 20 is an arc-shaped plate, and its arc-shaped opening faces the single hydraulic prop 30; the arc-shaped opening matches the shape of the side of the single hydraulic prop 30, And the inner surface of the arc-shaped plate is used to closely fit on the side of the single hydraulic prop 30 .
[0025] The present invention is provided with arc-shaped reinforcing plate...
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The invention discloses a vertical ladder for an underground coal mine. The vertical ladder comprises a vertical ladder body used for leaning against a single hydraulic prop, the vertical ladder body comprises side rods at the two sides, and a plurality of transverse rods are arranged between the side rods at the two sides in parallel; an arc-shaped reinforcing plate is arranged at the leaning side of the transverse rod located at the top, the arc-shaped reinforcing plate is an arc-shaped plate, and an arc-shaped opening of the arc-shaped reinforcing plate faces the single hydraulic prop; and the arc-shaped opening is matched with the side face of the single hydraulic prop in shape, and the inner surface of the arc-shaped plate is used for being tightly attached to the side face of the single hydraulic prop. According to the vertical ladder, the arc-shaped reinforcing plate is arranged at the leaning side of the top of the vertical ladder, and the arc-shaped reinforcing plate is buckled to the side face of the single hydraulic prop in the using process, so that the contact face of the vertical ladder and the single hydraulic prop can be enlarged, the stability of the vertical ladder leaning on the single hydraulic prop is improved, and then the construction safety in an underground roadway is improved.
Description
technical field [0001] The invention belongs to the technical field of underground coal mine tools, and in particular relates to a vertical ladder for underground coal mines. Background technique [0002] The ladder is a daily tool, and two long and thick poles are used as the sides, and a cross bar suitable for climbing is crossed in the middle for climbing. Ladders are generally divided into straight ladders, herringbone ladders and telescopic ladders. In coal mine underground tunnels, ladders are also commonly used tools. Due to the limited space in the tunnels, the ladders commonly used in underground tunnels are straight ladders. [0003] In the underground roadway, because the coal walls at both ends of the fully mechanized mining face are 3 to 5 meters outward, the roof anchor cable locks need to be withdrawn. Advance support on the single hydraulic prop, and then a worker takes the anchor jack to the straight ladder, puts the anchor jack on the outcrop of the ancho...
Claims
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Login to View More IPC IPC(8): E06C1/04E06C7/48E21F17/00
CPCE06C1/04E06C7/48E21F17/00
Inventor 郝亮李涛玉
Owner 陕西陕煤韩城矿业有限公司